Steam for Linux

The maximize window button in the top-right corner does nothing when clicked. I am using Unity, which supports maximizing windows by dragging them to the top of the screen. This works sometimes. Other times, this happens: http://imgur.com/2dYge (the window should be covering the entire black area)

Neither of these actions cause any terminal output to be generated.

Steps for reproducing:1. Open the Steam for Linux client.2. Attempt to maximize the window.

Same here, Linux Mint 14, Cinnamon desktop. And somehow it decided it wants to stay maximised. It won't even respect the reserved space from Cairo-dock. I also cannot move it from one monitor to the next one. The same is true for the "Finishing Steam cloud sync" window upon exit - it doesn't want to move at all :(